Inventor · disambiguated record
James W. P. Phelpstead
Also filed as: PHELPSTEAD JAMES W · PHELPSTEAD JAMES W P · PHELPSTEAD JAMES WILLIAM PERCY
5 granted patents·150 citations·filing 1975–1987
84Inventor score
Technology areasA24D
Top patents by PatentIndex Score
5 records- 0175US4062368ATobacco-smoke filtersBROWN & WILLIAMSON TOBACCO CORP·Filed 1975·Granted Dec 13, 1977·43 cites·4 claims
- 0270US4754766ATobacco smoke filtersBRITISH AMERICAN TOBACCO CO·Filed 1986·Granted Jul 5, 1988·38 cites·15 claims
- 0366US4300577ATobacco-smoke filtersBRITISH AMERICAN TOBACCO CO·Filed 1979·Granted Nov 17, 1981·22 cites·12 claims
- 0463US4660579ATobacco smoke filtersBRITISH AMERICAN TOBACCO CO·Filed 1985·Granted Apr 28, 1987·30 cites·7 claims
- 0550US4838286ASmoking articlesBRITISH AMERICAN TOBACCO CO·Filed 1987·Granted Jun 13, 1989·17 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →